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axis – An optional Axis node input. This links the position, rotation, scale, and skew of the transformed 3D object(s) to the Axis node, so that the transformation controls on the Axis node override the corresponding controls on the TransformGeo node.
Basic Settings Tab
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Read from Nuke camera – Enables camera information to be read from a standard Nuke Camera. A Nuke camera needs to be attached to the VayCamera's axis attribute.
Read from VRayVRScene node – Enables camera information to be read from a vrscene file. A VRayVRScene node needs to be attached to the VayCamera's axis attribute.
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Default – Standard pinhole camera.
Spherical – Spherical camera which means that the camera lenses has spherical form.
cylindrical point – All rays have a common origin - they are cast from the center of the cylinder. In the vertical direction the camera acts as a pinhole camera and in the horizontal direction it acts as a spherical camera.
cylindrical ortho – In vertical direction, the camera acts as an orthographic view and in the horizontal direction it acts as a spherical camera.
box – The box camera is simply 6 standard cameras placed on the sides of a box. This type of camera is excellent for generation of environment maps for cube mapping. It can also be very useful for GI; you can calculate the irradiance map with a box camera, save it to file, reuse it with a Default camera that can be pointed at any direction.
fish-eye – A special type of camera that captures the scene as if it is normal pinhole camera pointed at an absolutely reflective sphere which reflects the scene into the camera's shutter. You can use the Dist/FOV settings to control which part of the sphere will be captured by the camera. The red arc in the diagram corresponds to the FOV angle. Note that the sphere always has a radius of 1.0. warped spherical – Another spherical camera with a slightly different mapping formula.
orthogonal – An orthographic camera enabling flat, non-perspective views.
pinhole –
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The override FOV parameter changes the FOV of the perspective camera that is capturing the virtual Sphere when Fisheye auto-fit is enabled. |
warped spherical – Another spherical camera with a slightly different mapping formula.
orthogonal – An orthographic camera enabling flat, non-perspective views.
pinhole – Overrides the scene camera to force it to be a pinhole camera.
spherical panorama – Spherical camera with independent horizontal and vertical FOV selection that is useful for generating latlong images for spherical VR use.
cube6x1 – A variant of the box camera with the cube sides arranged in a single row. Unlike the box camera's output, cube6x1 does not produce an empty space in the output image and is useful in generating cubic VR output.
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Enable vignetting effect – When enabled, the optical vignetting effect of real-world cameras is simulated. For more information, please see the Vignetting example below.
Vignetting amount – Specify the amount of the vignetting effect, where 0.0 is no vignetting and 1.0 is normal vignetting.
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Aperture F-number vs Shutter Speed vs ISO
Cheat Sheet
The main options that control the brightness of a V-Ray Physically Accurate camera are Aperture F-number, Shutter Speed and ISO. They affect each other and you need to balance them according to your scene. Keep in mind that these settings do not correspond to those of a real-life camera. They apply only to the V-Ray Physically Accurate camera.
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Vignetting amount – Specify the amount of the vignetting effect, where 0.0 is no vignetting and 1.0 is normal vignetting.
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Example: Depth of Field (DOF)
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Example: Exposure Control | F-Stop (f-number)
Lowering the F-Number value will actually make the image brighter. The camera aperture is more open, so more light is absorbed.
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Note: The Sponza Atrium model was created by Marko Dabrovic ( http://www.rna.hr/) and Dabrovic and was one of the models for the CGTechniques Radiosity competition.
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